JPH07112794A - Liquid discharging device for rotary liquid filling machine - Google Patents

Abstract

PURPOSE:To safely, smoothly and automatically discharge a liquid in a liquid tank without interfering the other object by a method wherein on the bottom of the liquid tank, a liquid passage which is connected to a liquid-discharging pipe is attached, and a switching valve is provided in the middle of the liquid passing body. CONSTITUTION:After the completion of a filling work, a switching valve 29 of a liquid passage 2, which is connected to the bottom of a liquid tank 1, is opened by an operating means 30 by a remote control, and by this motion, a liquid drops in the liquid passage 2 by a power, and is discharged by a liquid discharging pipe 28. When the discharge of the liquid is completed, the inside of the liquid tank 1 is sterilized and washed by a sterilizing/washing member 38 while feeding a sterilizing/washing liquid from a liquid feeding pipe 40. Also, for the washing of the inside of a feeding means 4, the sterilizing/washing liquid is made to flow into the liquid tank 1 by the liquid feeding pipe 40 under a condition in which the switching valve 29 of the liquid passage 2 is closed, and the sterilizing/washing liquid is made to flow into the liquid passage 2 by a liquid discharging means 31 and discharging pipe 32, and is discharged orderly. Therefore, the passage of the filling means 4 is sterilized/washed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid discharge device for a liquid, for example, a rotary type liquid filling machine used in the liquid filling / packaging industry.

[0002]

2. Description of the Related Art In the liquid filling / packing industry and the like, it is common to fill a large amount of bottles with liquid by a continuous filling machine having a large number of filling nozzles. Therefore, at the start or end of every day, the flow path of the liquid in the liquid filling device, that is, the space between the tank containing the liquid and the filling nozzle at the end must be sterilized by steam, hot water, chemical liquid, etc. By circulating the cleaning liquid, sterilization and cleaning are performed to constantly keep the inside of the flow path clean, and the quality of the liquid to be filled and the sanitary environment must be maintained at a certain standard.

Therefore, in the art, when the filling of the liquid is finished or the filling of another liquid is changed, that is, when the mold is changed, the operation of the filling machine is once stopped, and as shown in FIG.
After connecting the discharge hose 52 to the manual discharge valve 51 provided at the bottom of the liquid tank 50, the manual valve 51 was operated to discharge the liquid to the outside of the machine.

Further, a gutter 54 connected to the outside of the machine is made to correspond to the lower side of the filling nozzle 53 attached to the liquid tank 50, the valve 55 of the filling nozzle 53 is opened, and the liquid is supplied to the gutter 54. It was dropped and discharged, and in the former and latter states described above, the cleaning liquid was fed into the flow path to perform the desired sterilization and cleaning.

However, in the former case, the work of connecting the discharge hose to the manual valve through the gaps between the filling nozzles that are suspended from the liquid tank is extremely troublesome and the workability is poor, so that the liquid is filled with heat ( Work to fill hot liquid)
In the case of, the residual liquid discharge further deteriorates the working environment, and if it touches an excessively hot device or liquid, it causes a serious accident and is extremely dangerous.

Further, since a series of these operations are performed manually, it is often the case that the discharge hose attached to the manual valve is forgotten to be removed or the valve is forgotten to be tightened. When the filling machine is operated at 1, the rotation and operation of the hose are hindered, many of the important parts such as the filling nozzle are damaged, and a large accident may occur.

Further, in the latter case, since a separately prepared gutter has to be attached to the lower side of the filling nozzle, it takes a lot of time for the attachment work and the main liquid filling is delayed. Since it cannot be filled with high efficiency, this gutter also needs to be removed after washing and washed and stored in another place.

Particularly, since the drainage liquid discharged from the filling nozzle is discharged at a constant pressure, the liquid is scattered on the trough and contaminates the vicinity of the filling machine, which not only makes the factory unsanitary but also liquids. May emit an offensive odor depending on the type, and when it is filled with heat, the splashed liquid may splash on the worker and the hot air fills the vicinity, creating an extremely bad working environment. Met. There were various problems such as.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and in a rotary liquid filling machine, a liquid passing through a drain pipe is attached to the bottom of a liquid tank. By providing an on-off valve in the middle of this liquid passage, a liquid discharge device for a rotary type liquid filling machine can discharge the liquid in the liquid tank automatically, safely and smoothly without interfering with other objects. It is intended to be provided.

[0010]

Means for Solving the Problems The means of the present invention for achieving the above-mentioned object is to provide a hollow shaft rotatably supported by a machine body, a rotary body attached to the hollow shaft, and a connecting body to the rotary body. A liquid tank, a filling means connected to the liquid tank, and a liquid passage in which the hollow shaft is fitted and one end is connected to the bottom of the liquid tank and the other end is connected to a drain pipe. And an on-off valve provided in the middle of the liquid passage, the liquid discharging device for a rotary liquid filling machine.

Further, a hollow shaft rotatably supported by the machine body, a rotary body attached to the hollow shaft, a liquid tank connected to the rotary body, a filling means connected to the liquid tank, and A liquid passage having one end connected to the bottom of the liquid tank and the other end connected to a drain pipe, and a hollow member inserted into the hollow shaft; A rotary liquid filling machine provided with a drainage member that selectively moves between a retreat position and a drainage pipe whose one end is connected to the drainage member and whose other end is connected to the liquid passing liquid. In the configuration of the liquid discharge device for use.

[0012]

The liquid discharging apparatus for a rotary type liquid filling machine of the present invention having the above-described structure has the following functions.

After filling the liquid with the filling means,
After all the liquid in the liquid tank has been discharged, cleaning or sterilization is performed from the liquid flow path in the liquid filling device, that is, the tank containing the liquid to the end filling nozzle, and the liquid is filled into the container. It is necessary to maintain the quality of liquids and maintain and manage the hygiene of related equipment and the surrounding area.

Therefore, first of all, when the liquid in the liquid tank is opened by opening the on-off valve for the liquid passage connected to the bottom of the liquid tank,
The liquid falls in the liquid passing through the gravity and is discharged to the outside of the machine through the drain pipe.

Then, when the sterilizing / cleaning liquid is caused to flow into the liquid tank for predetermined circulation and the like, desired sterilization and cleaning are performed in the liquid tank.

Further, when the on-off valve is closed and the liquid to be filled is made to flow into the liquid tank, preparation for filling is immediately made.

At this time, the rotary type liquid filling machine can be continuously operated without stopping its operation.

Next, when draining and sterilizing / cleaning the flow path of the filling means connected to the liquid tank, the drain member at the retracted position is made to correspond to the discharge hole of the filling nozzle.
Since the discharge pipe connected to this drainage member is connected to the liquid passage, when the valve of the filling nozzle is opened, not only the liquid in the flow passage of the filling means but also the liquid in the liquid tank is simultaneously discharged into the liquid passage. To be done.

In this state, if the sterilizing / cleaning liquid is allowed to flow into the liquid tank and a predetermined circulation or the like is performed in the above-mentioned flow path, not only the flow path of the filling means but also the liquid tank is desired. Sterilization and cleaning are performed.

In the same manner as described above, at this time, the rotary type liquid filling machine can be continuously operated without stopping its operation.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a liquid discharging device for a rotary liquid filling machine according to the present invention will be described below with reference to the drawings.

In FIG. 1 and FIG. 5, A is a liquid discharge device used in a rotary type liquid filling machine C showing an embodiment of the present invention, and its basic structure is in the lower side of a liquid tank 1 such as a filler ball. The liquid passage 2 is provided at the center of rotation.

Then, the rotary liquid filling machine C described above stores liquids, for example, liquids such as seasoning liquids, detergents, and chemicals.
A container, for example, a bottle b made of synthetic resin, glass or the like is filled with a predetermined volume, and a transfer means 3 for the bottle b containing a liquid and a filling means 4 provided in the vicinity of the transfer means 3 in the middle thereof. , A bottle b supply means 5 and a discharge means 6 provided between the transfer means 3 and the filling means 4.

The transfer means 3 uses a screw type conveyor provided on the conveyor 7 such as a horizontal belt or an endless track. Each empty bottle b transferred by the conveyor 7 is transferred one by one. It is sent to the filling means 4 at the same timing.

The above-mentioned filling means 4 continuously fills a predetermined amount of liquid into the bottle b supplied through the supply means 5, and comprises a liquid quantitative measuring member 8 and a filling nozzle 9. A large number of sets are annularly attached to the peripheral side portion of the liquid tank 1 described later at intervals.

Further, the liquid tank 1 is attached to the filling machine C with the following structure, and the holding body 12 is supported by the machine body 11 and is rotated to the central portion of the holding body 12 via the bearing 13. A hollow shaft 14 is freely supported, a rotating body 15 is attached to an upper end portion of the hollow shaft 14, and a liquid tank 1 rotating with the rotating body 15 is fixed to an upper portion of the rotating body 15. The above-mentioned liquid for filling the bottle b is contained in the inside.

The measuring member 8 in the filling means 4 is
For example, a cylinder / piston type is adopted, and its outer frame 16 is attached to the lower portion on the circumferential side of the liquid tank 1, and inside the outer frame 16 is an operating member 17 such as a liquid cylinder provided on the upper side thereof. A piston 18 that can be moved up and down is inserted and fitted, and a frame 19 of the filling nozzle 9 is provided below the outer frame 16.
A delivery passage 20 communicating with the inside is provided.

Further, the filling nozzle 9 in the filling means 4
Is for filling the liquid in the measuring member 8 into the bottle b by being connected to the measuring member 8. A discharge rod 21 having an open lower end is attached to the lower side of the frame body 19. In the body 19, a switching valve body 23 operated by an operating member 22 such as an upper liquid cylinder is mounted so as to be able to move up and down.

The switching valve element 23 has first and second valves 2 which are in contact with the valve seat in the frame 19 at the upper and lower portions thereof.
4, 25 are provided interlockingly.

Further, the frame 19 is connected to the other end of the supply pipe 26 whose one end faces the liquid tank 1 so that the liquid in the liquid tank 1 can flow into the frame 19. Is done.

Therefore, after operating the operating member 22 to raise the switching valve body 23, opening the first valve 24 and closing the second valve 25, the operating member 17 of the outer frame 16 is used to move the piston 18 of the measuring member 8.
When the desired stroke is pulled up, the liquid in the tank 10 passes through the supply pipe 26, flows into the frame 19 through the supply hole 27 of the frame 19, and fills the outer frame 16 from the supply passage 20. Then, a certain amount is weighed for filling the bottle b.

In filling the liquid, when the operating member 22 of the filling nozzle 9 is operated to lower the switching valve body 23, the first valve 24 is closed to prevent the liquid from flowing from the liquid tank 1. Since the second valve 25 is stopped and the second valve 25 is opened, the liquid in the outer frame 16 is delivered from the discharge pipe 21 through the delivery passage 20.

The filling nozzle 9 is not limited to the above-described structure, and for example, although not shown, the filling nozzle 9 is brought into contact with the mouth of the bottle to press the discharge portion thereof to open the valve. Well-known ones such as those that are used are adopted.

The above-mentioned supply means 5 and discharge means 6 are
By using a star wheel rotatably supported between the transfer means 3 and the filling means 4, the bottles b sent from the transfer means 3 are transferred to the filling means 4 one by one, and the filled bottles are filled. b is discharged one by one, and the operation is stopped when an overload such as a bottle b biting into the star wheel is caused by an internal safety device (not shown) such as a clutch. .

Then, the liquid passing 2 in the liquid discharge device A
Is for recovering the liquid in the liquid tank 1 (including the cleaning liquid) and the liquid in the filling means 4 (including the cleaning liquid), which is inserted into the hollow shaft 14 of the liquid filling machine C and has its upper end. Is connected to a discharge hole opened at the center of the bottom of the liquid tank 1, and the other end is connected to a drain pipe 28 connected to a recovery tank (not shown) outside the machine. I am allowed.

An on-off valve is provided in the middle of the liquid passage 2.
29 is provided and is operated by a conventional operating means 30 such as an electrically or liquidally operated remote control,
When 29 is opened, the liquid in the liquid tank 1 falls in the liquid passing liquid 2 due to its own weight, whereby the liquid in the liquid tank 1 can be completely discharged.

Next, the filling liquid 4 is utilized by utilizing the liquid passing 2.
When the liquid is drained, the drainage member 31 attached to the liquid filling machine C and the drain pipe 32 are used.

The drainage member 31 has a hollow interior so that the liquid can flow, and the support rod 33 provided at the lower portion of the drainage member 31 can be rotated by the rotating means 34 by the rotating means 34. And, it is movably supported by the elevating means 35.

The rotating means 34 contacts the lower lever 43 of the support rod 33 with the arm 42 rotated by a servomotor or a fluid cylinder (not shown), as shown in FIG. In addition, as shown in the figure, the lifting means 35 is, for example, a servomotor or a fluid cylinder (not shown).
A configuration is adopted in which a screw shaft 45 is screwed into a female screw piece 44 that is rotated by the above, and the drainage member 31 is appropriately operated by driving these motors and fluid cylinders.

A drain pipe 32 is connected to the drainage means 31 and the liquid passing through 2.
However, the drainage member 31 is connected so that it can be raised and lowered and rotated, and when the bottle b is filled, the drainage member 21 is moved to the retracted position with respect to the filling nozzle 9 by the rotating means 34. At the time of draining or cleaning, the rotating means 34 rotates the retracted position to a position corresponding to the filling nozzle 9 as shown in FIG. 2, and the lifting means 35 further supports the support rod 33, that is, the drain member 31. The upper edge portion is inserted into the discharge pipe 21 of the filling nozzle 9 by raising, and the liquid flow path is continuously communicated from the liquid tank 1 to the filling means 4 and the liquid passage 2.

Since the liquid passing through 2 is connected to the machine body 11 with respect to the holding body 12 by the rotary joint 36, when the liquid filling machine C is swung, the rotation and the connection are not hindered. There is no such thing.

In FIG. 1, reference numeral 37 is an air supply pipe attached to the upper part of the liquid tank 1, and when supplying liquid to the tank 1, air is evacuated from the liquid tank 1 which is closed, or pressurized air is supplied to the liquid tank 1. Blow in to discharge liquid.

In the figure, 38 is a sterilizing / cleaning member in the liquid tank 1 attached to the upper part of the liquid tank 1.
When the sterilization / cleaning liquid is pressed from the rotary type scattering body 39 provided at the lower end, the sterilization / cleaning liquid is radially ejected to sterilize / clean.

In the figure, reference numeral 40 is a liquid supply pipe which is attached to the upper part of the liquid tank 1 and supplies the liquid and the sterilizing / cleaning liquid into the liquid tank 1.

Further, in FIG. 1 and FIG. 2, reference numeral 41 denotes a liquid collecting portion provided in the liquid passing liquid 2, which has a cross sectional volume considerably larger than the cross sectional volume of the liquid passing liquid 2 and is discharged by the filling means 4. The liquid from the pipe 32 is once stored in this portion and then sent to the liquid passage 2 so that the continuous liquid discharge from the filling means 4, 4 ... I am doing it.

If the above-mentioned accepted drainage liquid can sufficiently correspond to the cross-sectional volume of the liquid passing liquid 2, this liquid collecting portion 41
Is not necessary.

Next, the operation of the apparatus of the present invention will be described.

After the completion of the filling operation, all the passages through which the liquid has passed have to be sterilized and washed, so first of all, the liquid in the liquid tank 1 is discharged.
When the opening / closing valve 29 for the liquid passage 2 connected to the bottom of the liquid is opened by the operating means 30 by remote control, the liquid falls in the liquid passage 2 due to its gravity and is discharged to the outside of the machine through the drain pipe 28. To be done.

When the drainage in the liquid tank 1 is completed, the liquid flow paths in the liquid tank 1 and the filling means 4 are then thoroughly sterilized with a sterilizing / cleaning liquid such as water, hot water, steam or chemical liquid. For cleaning, the sterilization / cleaning member 38 sterilizes / cleans the inside of the liquid tank 1 while supplying sterilization / cleaning liquid from the liquid supply pipe 40.

At this time, even when the open / close valve 29 is opened,
Further, it can be performed in any of the closed states.

Further, in cleaning the inside of the filling means 4, the liquid tank 1 is closed while the liquid passage 2 is closed by the opening / closing valve 29.
The sterilizing / cleaning liquid is caused to flow into the inside by the liquid supply pipe 40, the first valve 24 in the switching valve body 23 of the filling nozzle 9 is opened by the operating member 22, and the piston 18 of the measuring member 8 is operated by the operating member 17, After the outer frame 16 is filled with the cleaning liquid, the second valve 25 of the switching valve body 23 is opened again by the operating member 22, and the sterilizing / cleaning liquid filled in the outer frame 16 is operated by the operating member 17.
When the piston 18 is pushed out, it is forcibly discharged from the discharge pipe 21 to the outside.

At this time, the drainage member 31 corresponds to the lower end of the discharge pipe 21 by operating the rotating means 34 and the elevating means 35, and the drainage liquid from the discharge pipe 21 is drained. It flows from the member 31 through the discharge pipe 32 into the liquid passage 2 and is sequentially discharged.

Therefore, if this operation is appropriately repeated,
The flow path in the filling means 4 is sterilized and washed.

In particular, in the apparatus of the embodiment of the present invention, the liquid filling machine C is continuously operated in the same manner as when filling the bottle b, and the liquid filling machine C must be in operation. The sterilization and cleaning of the measuring member 8 and the filling nozzle 9 of the filling means 4 which does not operate can be surely performed.

It goes without saying that drainage, sterilization and cleaning of the liquid tank 1 can be performed while the liquid filling machine C is in operation.

[0056]

According to the present invention constructed as described above, the liquid discharge path is provided in the filling machine and is not exposed to the outside, and furthermore, when draining the liquid, the piping, the gutter, etc. are installed. Since there is no need to make any preparation in advance, the work can be done automatically and easily by an unmanned person, and the liquid at the time of discharge does not splash, and it is a safe work that does not harm nearby equipment or workers. It has a unique effect of providing an environment.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of a liquid discharging device for a rotary type liquid filling machine according to the present invention, partially broken away.

FIG. 2 is a partially cutaway front view showing a drainage state in FIG.

FIG. 3 is a partially cutaway front view showing a filling means in FIG.

FIG. 4 is a partially cutaway plan view of a main part in FIG.

5 is a plan view schematically showing the rotary liquid filling machine in FIG. 1. FIG.

FIG. 6 is an explanatory diagram showing a drained state in a conventional liquid filling device.

[Explanation of symbols]

 1 Liquid tank 2 Liquid 4 Filling means 9 Filling nozzle 11 Machine body 14 Hollow shaft 15 Rotating body 28 Drain pipe 29 Open / close valve 31 Drain member 32 Drain pipe

Claims (2)

[Claims] 1. A hollow shaft rotatably supported by an airframe,
A rotating body attached to the hollow shaft, a liquid tank connected to the rotating body, a filling means connected to the liquid tank, and a hollow shaft inserted into the bottom end of the liquid tank. A liquid discharge device for a rotary liquid filling machine, comprising: a liquid passage having the other end connected to a drain pipe; and an opening / closing valve provided in the middle of the liquid passage. 2. A hollow shaft rotatably supported by the machine body,
A rotating body attached to the hollow shaft, a liquid tank connected to the rotating body, a filling means connected to the liquid tank, and a hollow shaft inserted into the bottom end of the liquid tank. A drainage member having the other end connected to a drainage pipe, and a drainage member which is supported by the rotating body and selectively moves between a filling nozzle corresponding position of the filling means and a retracted position; and the drainage liquid. A liquid discharging device for a rotary liquid filling machine, comprising: a member, one end of which is connected, and the other end of which is connected to the liquid passage.